Benchmark: Simplebar - jQuery init

HTML Preparation code:

<div class="simple-scrollbar">
  <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
</div>
<div class="simple-scrollbar">
  <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
</div>
<div class="simple-scrollbar">
  <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
</div>
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js'></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/simplebar/5.3.6/simplebar.min.js" integrity="sha512-rn0CaCtyheymRT43p0ZuFH0SvNriLU5cuJpY2f4IcyLrbHzJdsIF1dygi9oNha1BhHagO8U+h2xRWCosYf9gCg==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>

Tests:

Selectors
$(document).ready(function() { $('.simple-scrollbar').each(function(i) { new SimpleBar($('.simple-scrollbar')[i]) }); });
This
$(document).ready(function() { $('.simple-scrollbar').each(function() { new SimpleBar($(this)[0]) }); });

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Selectors
This

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 26 days ago):

LLMs can make mistakes. Check important info.

I'll break down the provided JSON and explain what's being tested, along with the pros and cons of each approach.

**Benchmark Definition**

The benchmark definition is a JavaScript code snippet that initializes SimpleBar, a jQuery plugin for creating scrollbars. The script uses two different approaches to iterate over the `.simple-scrollbar` elements:

1. `$('.simple-scrollbar').each(function(i) { new SimpleBar($('.simple-scrollbar')[i]) });`
2. `$('.simple-scrollbar').each(function() { new SimpleBar($(this)[0]) });`

**What's being tested?**

These two test cases are designed to measure the performance difference between using the index-based approach (`i`) and the "this" keyword-based approach (using `$(this)`). The goal is to determine which approach is faster.

**Options compared**

* **Index-based approach**: Uses the `each` method with an index (`i`) as a callback function. This approach requires calculating the index for each element.
* **This keyword-based approach**: Uses the "this" keyword inside the `each` method to access the current element's context. This approach does not require explicit indexing.

**Pros and Cons of each approach**

1. **Index-based approach**:
	* Pros: More readable code, as it explicitly shows the index used for iteration.
	* Cons: May be slower due to extra calculations (index lookup).
2. **This keyword-based approach**:
	* Pros: Can be faster, as it avoids unnecessary calculations and uses the optimized `$(this)` syntax.
	* Cons: Less readable code, as the "this" keyword's behavior is not immediately clear.

**Library and purpose**

The SimpleBar library is used to create scrollbars. It provides a simple way to initialize scrollbars on elements with a class of `.simple-scrollbar`.

**Special JS feature or syntax**

The `$(document).ready` function and the use of `$('.selector')` are part of jQuery's DOM manipulation API. The `(this)` keyword is also used, which is a common pattern in JavaScript for accessing the current element's context.

**Other alternatives**

If you want to create a similar benchmark, you could try using other libraries or APIs that provide similar functionality, such as:

* Vanilla JavaScript: You can use the `forEach` method or the `Array.prototype.forEach()` method to iterate over an array of elements.
* Other plugins like jQuery UI or pure JavaScript solutions.

However, keep in mind that creating a benchmark that accurately measures performance differences between approaches may require additional setup and testing to account for factors like caching, optimization, and other environmental influences.

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/114.0

Browser/OS: Firefox 114 on Windows

View result in a separate tab

Test name	Executions per second
Selectors	16006.6 Ops/sec
This	2877.5 Ops/sec

Related benchmarks:

Simplebar - jQuery init (version: 0)

jQuery.each selector v this

Comparing performance of: Selectors vs This

Created: 2 years ago by: Registered User

Jump to the latest result

Selectors

This

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 26 days ago):